Hydraulic Cylinder Barrel
Professional manufacturer of hydraulic cylinder barrel, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. Hydraulic cylinder barrel Hydraulic cylinder barrel was made by cold-drawn...
Professional manufacturer of hydraulic cylinder barrel, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China.
Hydraulic cylinder barrel
Hydraulic cylinder barrel was made by cold-drawn tube and flange, oil port etc. which was precision processed by welded, boring, reaming, skiving or honing. When get through those process barrel can be easy to make into hydraulic cylinder and can be ensure seal ability, reduce abrasion, move smoothly.
Barrel can be produced according to the demands of customers, tolerance as H8, H9.
According to the pressure requirement and diameter size, different material would be chosen .
Material: DIN2391 standard ST52, EN10305 standard E355, 16Mn, ASTM A106B, C20/20#, CK45
Standard: GB/T8713-88, GB/T3639-2009, DIN2391, EN10305 ASTM A519, DIN2391, EN10204-1
Parameters Description
ID size | ID Tolerance |
| ||||
H7 | H8 | H9 | H10 | H11 | ||
30 | +0.0210 | +0.0330 | +0.0520 | +0.0840 | +0.1300 | ±5% |
>30-50 | +0.0250 | +0.0390 | +0.0620 | +0.1000 | +0.1600 | |
>50-80 | +0.0300 | +0.0460 | +0.0740 | +0.1200 | +0.1900 | |
>80-120 | +0.0350 | +0.0540 | +0.0870 | +0.1400 | +0.2200 | |
>120-180 | +0.0400 | +0.0630 | +0.1000 | +0.1600 | +0.2500 | |
>180-250 | +0.0460 | +0.072 | +0.1150 | +0.1850 | +0.2900 | |
>250-315 | +0.0520 | +0.0810 | +0.1300 | +0.2100 | +0.3200 | |
>315-800 | +0.0570 | +0.0890 | +0.1400 | +0.2300 | +0.3600 |
Processing Form | I. D | Length | Straightness | I. D Tolerance | I. D Roughness |
Cold-rolled | 30-100 | ≤ 12M | 0.3-1.0/1000 | H8-H10 | 0.4-1.6 |
Cold-drawn | 30-250 | ≤ 12M | 0.3-1.0/1000 | H9-H11 | 0.8-1.6 |
Hone | 40-500 | ≤ 12M | 0.2-0.3/1000 | H8-H9 | 0.4-0.8 |
SRB | 40-400 | ≤ 7M | 0.2-0.3/1000 | H8 | 0.1-0.4 |
Physical and Chemical Properties
Grade | Cold finished (hard) (BK) | Cold finished (hard) (BK+S) | Hardness | Impact Value (-20°C) J | |||
T.S | Elongation 85% | T.S | Y.S SN/mm2 | Elongation 85% | |||
1020 | ≥550 | ≥8 | ≥520 | ≥400 | ≥15 | 170 | -- |
C45 | ≥680 | ≥5 | ≥630 | ≥520 | ≥12 | 190 | -- |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 | 160 | -- |
27SiMn | ≥780 | ≥5 | ≥700 | ≥580 | ≥10 | 220 | -- |
ST52 | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | -- |
ST52.3 | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | ≥27 |
Material | C | Si | Mn | S(≤) | P(≤) | Cr | Ni | Mo | other |
A106B / C20# | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
CK45# | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | 0.035 | 0.035 | ≤0.25 | ≤0.30 | Cu≤0.25 | |
Q345B | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.040 | 0.040 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | Alt≥0.015 |
ST52 | ≤0.20 | ≤0.55 | 1.00-1.60 | 0.045 | 0.045 | V:0.02-0.15 | Nb:0.015-0.06 | Ti:0.02-0.20 | 16Mn |
25Mn | 0.22-0.30 | 0.17-0.37 | 0.70-1.00 | 0.035 | 0.035 | ≤0.25 | ≤0.25 | ||
27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | 0.030 | 0.030 | ||||
42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.025 | 0.025 | 0.90-1.20 | 0.15-0.25 |
Product Processing
Why Choice Us
1. Professional, rich experience, reliable.
2. One-stop solution for honed tube, chrome rod.
3. Full range of size and material, ready stock goods with fast delivery
4. Customizable, non-standard sizes available
5. Small quantity acceptable
6. Refund or replace if any quality issue.